LU-2886 obdclass: use common way to store lastid

[fs/lustre-release.git] / lustre / obdclass / local_storage.h

diff --git a/lustre/obdclass/local_storage.h b/lustre/obdclass/local_storage.h
index 4aee0bd..9f50128 100644 (file)
--- a/lustre/obdclass/local_storage.h
+++ b/lustre/obdclass/local_storage.h
@@ -20,7 +20,7 @@
  * GPL HEADER END
  */
 /*
- * Copyright (c) 2012 Whamcloud, Inc.
+ * Copyright (c) 2012, Intel Corporation.
  */
 /*
  * lustre/obdclass/local_storage.c
@@ -74,3 +74,16 @@ struct ls_device *ls_device_get(struct dt_device *dev);
 void ls_device_put(const struct lu_env *env, struct ls_device *ls);
 struct local_oid_storage *dt_los_find(struct ls_device *ls, __u64 seq);
 void dt_los_put(struct local_oid_storage *los);
+
+/* Lustre 2.3 on-disk structure describing local object OIDs storage
+ * the structure to be used with any sequence managed by
+ * local object library.
+ * Obsoleted since 2.4 but is kept for compatibility reasons,
+ * see lastid_compat_check() in obdclass/local_storage.c */
+struct los_ondisk {
+       __u32 lso_magic;
+       __u32 lso_next_oid;
+};
+
+#define LOS_MAGIC      0xdecafbee
+